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Health Topics for the letter "Y"
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Yellow fever is a disease cause by flavivirus. The virus is spread by mosquito bites that occur in the jungle and tropical areas of South America and Africa.
Yersiniosis (yer-sin-ee-o-sis) is an infection caused by the bacteria Yersinia. Yersinia is a strong bacteria that can continue to live in environments without much oxygen and in refrigeration. One common source of infection can be contaminated food such as raw or undercooked pork.